New Canon Patent: EF 35mm f/1.4L II USM Lens

Canon has filed a new lens patent for the upcoming Canon EF 35mm f/1.4L II USM lens. And this new EF 35mm f/1.4L II will be the next new L lens after Canon EF 11-24mm f/4L USM and it is rumored to be announced in late Summer 2015.

Explanation and self-interpretation of the patent literature

  • Patent Publication No. 2015-72370
    • Published 2015.4.16
    • Filing date 2013.10.3
  • Example 1
    • Focal length f = 35.47mm
    • Fno. 1.45
    • Half angle of view ω = 31.38 °
    • Image height Y = 21.64mm
    • Lens length 141.37mm
    • BF 39.37mm
    • Positive, positive ShiboTadashi

via: EG

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